added select method without parameters per issue http://code.google.com/p/mybatis/issues/detail?id=9

Author: nmaves

src/main/java/org/apache/ibatis/session/SqlSession.java

@@ -17,6 +17,8 @@ public interface SqlSession {
 
   void select(String statement, Object parameter, ResultHandler handler);
 
+  void select(String statement, ResultHandler handler);
+
   void select(String statement, Object parameter, RowBounds rowBounds, ResultHandler handler);
 
   int insert(String statement);

src/main/java/org/apache/ibatis/session/defaults/DefaultSqlSession.java

@@ -68,6 +68,10 @@ public void select(String statement, Object parameter, ResultHandler handler) {
     select(statement, parameter, RowBounds.DEFAULT, handler);
   }
 
+  public void select(String statement, ResultHandler handler) {
+    select(statement, null, RowBounds.DEFAULT, handler);
+  }
+
   public void select(String statement, Object parameter, RowBounds rowBounds, ResultHandler handler) {
     try {
       MappedStatement ms = configuration.getMappedStatement(statement);

src/test/java/org/apache/ibatis/session/SqlSessionTest.java

@@ -540,6 +540,26 @@ public void shouldLimitResultsUsingMapperClass() throws Exception {
   }
 
   private static class TestResultHandler implements ResultHandler {
+    int count = 0;
+    public void handleResult(ResultContext context) {
+      count++;
+    }
+  }
+
+  @Test
+  public void shouldHandleZeroParameters() throws Exception {
+    SqlSession session = sqlMapper.openSession();
+
+    try {
+      final TestResultHandler resultHandler = new TestResultHandler();
+      session.select("domain.blog.mappers.BlogMapper.selectAllPosts", resultHandler);
+      assertEquals(5, resultHandler.count);
+    } finally {
+      session.close();
+    }
+  }
+
+  private static class TestResultStopHandler implements ResultHandler {
     int count = 0;
     public void handleResult(ResultContext context) {
       count++;
@@ -552,7 +572,7 @@ public void shouldStopResultHandler() throws Exception {
     SqlSession session = sqlMapper.openSession();
 
     try {
-      final TestResultHandler resultHandler = new TestResultHandler();
+      final TestResultStopHandler resultHandler = new TestResultStopHandler();
       session.select("domain.blog.mappers.BlogMapper.selectAllPosts", null, resultHandler);
       assertEquals(2, resultHandler.count);
     } finally {